Multiplication principle - math problems
Number of problems found: 187
Hockey match ended 8:2. How many different matches could be?
- PIN - codes
How many five-digit PIN - code can we create using the even numbers?
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
- 2nd class combinations
From how many elements you can create 4560 combinations of the second class?
On the menu are 12 kinds of meal. How many ways can we choose four different meals into the daily menu?
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
How many are all subsets of set ??
- Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
- Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
We throw five times the dice. What is the probability that six fits exactly twice?
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
Seven friends agree to send everyone a holiday card. How many postcards were sent?
From the colors - red, blue, green, black and white, create all possible tricolors.
- Two-element combinations
Write all two-element combinations from elements a, b, c, d.
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
- 2nd class variations
From how many elements you can create 2450 variations of the second class?
- The gems
The jeweler selects 4 gems for the ring. It has rubies, emeralds and sapphires. How many options does he have?
We throw 10 times a play dice, what is the probability that the six will fall exactly 4 times?